what is light n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
What is Light ? PowerPoint Presentation
Download Presentation
What is Light ?

Loading in 2 Seconds...

play fullscreen
1 / 20

What is Light ? - PowerPoint PPT Presentation


  • 96 Views
  • Uploaded on

What is Light ? . What causes the Aurora Borealis ? . What is an Atom ? . Basic Atom Structure. Atoms also have shells. Hydrogen . Carbon . What happens when we give an electron more energy? . Activity: Flame Test .

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

What is Light ?


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. What is Light ?

    2. What causes the Aurora Borealis ?

    3. What is an Atom ?

    4. Basic Atom Structure

    5. Atoms also have shells Hydrogen Carbon

    6. What happens when we give an electron more energy?

    7. Activity: Flame Test Now we will test what happens when we add heat from a flame to different chemical compounds.

    8. Flame Test – Explanation

    9. Energy/heat is added to an electron This causes the electron to move from a lower electron shell to a higher one

    10. Movement of electrons

    11. The electron loses the extra energy... Eventually the electron loses this energy and both heat and light are released as it drops back down.

    12. Different elements produce different light when excited

    13. But where does the majority of light come from?

    14. The Sun

    15. What elements are being excited in the sun? Mostly HYDROGEN and HELIUM atoms

    16. Colours produced from hydrogen

    17. Colours produced from helium

    18. And when the colours combine.... They produce white/visible light

    19. Different Suns produce different colours Different suns produce different colours based on the elements they contain and the amount of heat/energy they produce

    20. So what causes the Aurora Borealis ?